LAZ Point Cloud Viewer
Open compressed LAZ clouds locally with EDL, class filters, a clip box, profiles and volume estimates — free, no sign-in, nothing uploaded.
Processing and data safety
Section titled “Processing and data safety”This tool runs entirely in your browser (local WebAssembly) — your files are never uploaded to a server.
Input and output
Section titled “Input and output”- Formats: LAZ
- Flow: LAZ → in-browser 3D view (decoded locally)
How to use
Section titled “How to use”- Open a .laz file — it decodes and renders locally (large clouds are display-sampled to a 4M-point budget); or click Load sample — the built-in synthetic terrain runs as uncompressed LAS content through the same decode/render pipeline (no co…
- Pick a color mode and preset (classic/spectral/mono) and point size; optionally switch on EDL depth enhancement.
- Toggle classes in the legend (ground, buildings, vegetation, …) or set a clip box (X/Y/Z min·max) to focus the display. Hover any point to inspect its attributes (coordinates/intensity/class/RGB).
Key details and limits
Section titled “Key details and limits”- Based on @loaders.gl/las + laz-perf (MIT/Apache-2.0).
- The whole file is decoded at once (no streaming) — very large clouds are memory-bound; for hierarchical streaming use the COPC Viewer.
- Decoded points are evenly stride-sampled to a 4M-point display budget (the stats card reports sampled vs. total); the filter/export tools process the full cloud.
Common use cases
Section titled “Common use cases”- Drop in a .laz → 3D view
- Click Load sample → synthetic terrain runs the same decode/render pipeline, no compressed sample bundled